CVE-2020-36619: multimon-ng_project multimon-ng
Vulnerability summary
CVE-2020-36619 is a critical (CVSS 9.8) vulnerability in multimon-ng_project multimon-ng. EPSS estimates a 0.93% chance of exploitation in the next 30 days, higher than 59.8% of scored vulnerabilities.
Timeline
- 19-12-2022PublishedVulnerability first disclosed.
- 15-04-2025Last modifiedVulnerability information updated.
Description
A vulnerability was found in multimon-ng. It has been rated as critical. This issue affects the function add_ch of the file demod_flex.c. The manipulation of the argument ch leads to format string. Upgrading to version 1.2.0 is able to address this issue. The name of the patch is e5a51c508ef952e81a6da25b43034dd1ed023c07. It is recommended to upgrade the affected component. The identifier VDB-216269 was assigned to this vulnerability.
CVSS metrics
4 scores · 4 sources · 1 version- CVE.orgCNA5.5MediumCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:LDiffers
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.93%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
+0.04 pp
From 0.89% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
- CWE-134Use of Externally-Controlled Format StringThe product uses a function that accepts a format string as an argument, but the format string originates from an external source.
Affected systems
Opensuse2 products
- multimon-ng&distro=openSUSE Leap 15.3< 1.2.0-bp153.2.3.1
- multimon-ng&distro=openSUSE Leap 15.4< 1.2.0-bp154.2.3.1
Suse2 products
- multimon-ng&distro=SUSE Package Hub 15 SP3< 1.2.0-bp153.2.3.1
- multimon-ng&distro=SUSE Package Hub 15 SP4< 1.2.0-bp154.2.3.1
Debian1 product
- multimon-ng< 1.2.0+dfsg-1
Multimon-ng_project1 product
- multimon-ng< 1.2.0
Ubuntu1 product
- multimon-ngAll versions (No fix recorded)
Unspecified1 product
- multimon-ngn/a
6 vendors · 8 products
References
11 links- github.com/EliasOenal/multimon-ng/commit/e5a51c508ef952e81a6da25b43034dd1ed023c07PatchThird Party Advisory
- lists.opensuse.org/archives/…Advisory
- lists.opensuse.org/archives/…Advisory